Chemical Name: Ethyl (S)-1-(1-((tert-butyldimethylsilyl)oxy)-3-methylbutan-2-yl)-6-(3-chloro-2-fluorobenzyl)-7-methoxy-4-oxo-1,4-dihydroquinoline-3-carboxylate;6-(3-Chloro-2-fluorobenzyl)-7-methoxy-1-[(2S)-methyl-1- trimethylsilanyloxymethyl-propyl)]-4-oxo-1,4-dihydro-quinoline-3- carboxylic acid ethyl ester
Synonym: Elvitegravir ELT-II silyl Impuritys